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Dielectric Separator

Description: Patent for an apparatus that "separates substances of different dielectric capacities" (lines 12-13). Illustrations included.
Date: May 19, 1908
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department

Electrically-Operated Latch and Door

Description: Patent for electrically operated latch and door " and particularly to a construction for primarily operating a latch to release the door, the movement of which latch establishes circuit through a door-opening mechanism.(lines 11-15)
Date: May 19, 1903
Creator: Chambers, Joseph, Jr.
Partner: UNT Libraries Government Documents Department
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